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The Effect of Different Cooking Techniques and Internal Cooking Temperature Applications on The Oxidative Stability of Hamburger Patties
2020
Azim Şimşek
The aim of this study was to investigate the effects of different cooking techniques and internal cooking temperature applications on the oxidative stability of hamburger patties. For this purpose, 4 different cooking techniques (boiling, oven-roasting, grilling and microwave) and 2 different internal cooking temperatures (72°C and 78°C) were used. Microwave cooking caused the highest cooking loss values. The higher cooking loss values were determined as a result of the 78°C internal cooking temperature application. Lower pH values were obtained by microwave cooking. Boiling increased L* and a* values, whereas decreased b* values compared to other cooking techniques. While a* values decreased with storage in hamburger patties, b* and HUE angle values increased. The lower thiobarbituric acid reactive substances (TBARS) and lipid hydroperoxide (LPO) values were determined in samples cooked with microwave or boiling technique. Even though there was no TBARS difference between different internal cooking temperature applications, the higher LPO values were determined in the application of 78°C internal cooking temperature. The results of this study showed that less oxidative changes could be occurred by the use of either microwave or boiling technique in hamburger patty production.
显示更多 [+] 显示较少 [-]Backyard Chicken Farming Role in Supplementing Household Economy of District Quetta, Pakistan
2020
Kamran Baseer Achakzai | Muhammad Abbas Shah | Ramla Achakzai | Ghulam Hussain Kakar
Backyard chicken farming is as an effective tool for poverty reduction in rural areas, by providing living to resource poor communities; it is an important source of extra cash income other than eggs and meat for family consumption. The present study was carried out to assess the role of backyard poultry farming in supplementing household economy of rural farmers dwelling in district Quetta, Pakistan. Information from ninety-nine randomly selected female backyard poultry farmers were gathered during November 2016 to March 2017. Owing to previous government and non-government interventions backyard poultry keeping was found as an established practice. Women were found the main custodian of backyard poultry birds and consequently were the main beneficiary of the activity. Poultry birds of Fayoumi and Golden / Rhode Island Red (RIR) breeds were the main types. Majority of the farmers reared these birds under scavenging conditions in combination with feeding on household left over dry bread (52%); most of the respondents (62%) were taking care of the birds by themselves which resulted in overall low production cost. Income included the earning received from sale of birds, eggs and the home consumption of poultry meat and eggs. Net income per annum per household was estimated as Pakistani Rupee (PKR) 79290/- (US$ 566). The estimated Rank Based Quotients (R.B.Q) based on farmers perception disclosed backyard poultry keeping as an important domestic source of meat and eggs with almost no or very little capital investment, ranked (I, 80%) followed by a substantial source of supplementary income and was ranked (II, 79%). Amongst the problems, disease outbreaks were the most prevailing problem (I, 90%) followed by unavailability of vaccines (II, 85%). The backyard poultry farming generated subsistence income and provided high quality valuable food that improved household nutrition.
显示更多 [+] 显示较少 [-]The Impact of Climate Change on Tourism: A Causality Analysis
2020
Murat Atasoy | Filiz Guneysu Atasoy
Tourism industry is one of the primary sectors that contribute to economic growth of countries worldwide. Since it requires appropriate weather conditions and clean environment, climate changes can significantly affect the sector. Therefore, this study examines the causality and long-run relationship between the climate change and tourism sector in Turkey. To estimate the potential long-run relationship between variables, Granger-Causality test is applied to data from 1960 to 2016. The study uses World Development Indicator Data released by World Bank. For the analysis, carbon-dioxide emission, methane emission, energy use (oil equivalent), and forest land are standing for climate change indicators. International tourist arrivals and tourism revenues represent for tourism sector’s variables. The findings show that there is a negative and significant coefficient of climate change on tourism sector. Also, in average, climatic change indicators have unidirectional and negative impact on international tourism revenue. Another finding is that climate change deteriorates to environment by augmenting carbon dioxide emission and methane emission. As a result, climatic change can weaken the tourism industry which can decrease the speed of Turkey’s economic development. In the long run, this research can pioneer assessing the economic and environmental impacts of climate change in the tourism sector bases.
显示更多 [+] 显示较少 [-]Determinant of Sesame Export Performance in Ethiopia: A Panel Gravity Model Application
2020
Murad Mohammed Baker | Beyan Ahmed Yuya
Ethiopia’s sesame export earn percentage share in the total export had been rapid declining over the last decades while it was the second commodity in currency grossing of the country. The objective of this study was to examine the determinant factors of Ethiopia’s sesame exports performance, in the aspect of export trade, by the use of a more realistic model approach, a panel gravity model. It used short panel data that cover 11 countries of consistent Ethiopia’s sesame importers for the period of 13 years from 2002 to 2014. The panel unit root test of Levin-Lin-Chu was used for each variable and applied the first difference transformation for the variables that had a unit root. The random effect model results suggested that real gross domestic product of importing countries; Ethiopian real gross domestic product, real exchange rate and weighted distance were found to be the determinant factors of Ethiopia’s sesame exports performance. The estimated results revealed that as real gross domestic product of importing countries increase by 1%, the flows of Ethiopia’s sesame exports performance increase by 1.63%. Based on the finding results, the researcher recommends that the policy maker must adopt the policies that reduce the cost of shipping through improving the infrastructure for shipments sector and contract a free trade agreement with distant countries. The government should encourage the private sector to diversify their products and improving the quality of its products to increase the competitiveness the Ethiopian products in foreign markets.
显示更多 [+] 显示较少 [-]Effects of Leonardite and Mineral Fertilizer Applications on Plant Growth and Soil Quality of Garlic (Allium sativum L.)
2020
Temel Sarıyıldız
Turkey is one of the major garlic producing country in the world and the significant amount of Turkey’s production has been made using a garlic variety called Taşköprü garlic (Allium sativum L.) in Kastamonu, Turkey. In order to improve the quality of garlic production, a field experiment was conducted to evaluate the effects of different doses of leonardite organic fertilizer, mineral fertilizer NPK and the mixture of both the leonardite and NPK fertilizers on the soil properties and mean performances of different characters and yield production of Taşköprü garlic. The treatments were: the plots without leonardite and NPK fertilizers (Control), (2) 80 N kg ha-1 + 40 kg ha-1 P2O5 + 100 kg ha-1 K2O (MF), (3) 2.6 ton ha-1 leonardite (Leo1), (4) 6.9 ton ha-1 leonardite (Leo2), (5) 9.7 ton ha-1 leonardite (Leo3), (6) Leo1 + MF, (7) Leo2 + MF and Leo3 + MF. Most soil characteristics and the different characters and yield production of Taşköprü garlic statistically varied between the different fertilizer treatments. The plots with the Leo3MF application showed the highest soil organic C, N, P and K concentrations, and the SOCstock and TNstock, while it had the highest bulb weight, length, equatorial diameter, weight of cloves, width of cloves, length of cloves as well as bulb yield per decare. Of the soil properties, the garlic yield was strongly positively correlated with the soil N concentration, indicating that the applications of leonardite with the different doses or the mixture of leonardite with the mineral fertilizer were resulting in higher soil N concentration and thus having the greatest effect on the garlic yields.
显示更多 [+] 显示较少 [-]Micropropagation of Spathiphyllum with Temporary Immersion Bioreactor System
2020
Yıldız Aka Kaçar | Dicle Dönmez | Belgin Biçen | Mansur Hakan Erol | Özhan Şimsek | Yeşim Yalçın Mendi
Turkey has an advantageous position for the cultivation of ornamental plants for reasons such as favourable conditions, proximity to markets and cheap labour. In addition to classical production methods, biotechnological methods are used to meet the demand of Spathiphyllum, which is an indoor plant. In recent years, it has been started to be used in micropropagation of plants called temporary immersion system as well as classical tissue culture systems. Within the scope of the present study, micropropagation and rooting studies were carried out using classical tissue culture system and Plantform, one of the temporary immersion bioreactor systems, in the commercially important Spathiphyllum ‘Chico’ genotype. MS medium containing 1 mg L-1 6-Benzylaminopurine (BAP) was used in micropropagation experiments established in both systems, and Murashige and Skoog (MS) medium containing 1 mg L-1 Indole-3-butyric acid (IBA) was used in rooting experiments. The results of micropropagation and rooting have been found to be successful in both systems. As a result of the screening with Sequence-Related Amplified Polymorphism (SRAP) markers, it was determined that there were no genetic differences in the plants that were reproduced and rooted.
显示更多 [+] 显示较少 [-]Socio-Economic Characteristics of Dairy Farms and Use Level of Feedstuff in the Eastern Mediterranean Region
2020
Hilal Yılmaz | Tugay Ayasan | Cengiz Sağlam | Mevlüt Gül
The aim of this study was to determine the socio-economic structures of dairy cattle farms and feed usage in dairy cattle sector in the Mediterranean Region provinces (Adana, Osmaniye, Mersin, Hatay, Kahramanmaraş) of Turkey. According to the results of the research, it was determined that the family sourced labour force was used at a higher rate than the foreign labour force during dairy cattle production activities. It was found that forage crops were produced in 62% of the farms where silage maize, alfalfa, barley and vetch covered the highest acreages, respectively. A large proportion of the enterprises was possessor of milking machines (85.81%). It was determined that, as the size of the farm increases, the roughage usage increases compared to concentrate feed.
显示更多 [+] 显示较少 [-]Anthocyanin Stability Profile of Mango Powder: Temperature, pH, Light, Solvent and Sugar Content Effects
2020
Shireen Akther | Farhana Sultana | Md. Rahim Badsha | Jakia Sultana Jothi | Md. Abdul Alim
Anthocyanins, a major natural food colorant rich in mango powder, need considerable protection during processing and storage for better retention due to colour instability. The purpose of the study is to evaluate the stability of the anthocyanin’s extracts obtained from cabinet dried mango powder under different factors which could disrupted the anthocyanin pigments during processing. The factors are processing temperature and time (30°C, 60°C and 80°C for 10, 20 and 30 minutes each, respectively), storage conditions (room temperature, refrigerator temperature and freezing temperature), pH (2, 3, 4, 7 and 10), oxygen, influence of light, different extraction solvent (methanol, absolute ethanol, acidified ethanol (1%), and 50% KMS -Ethanol), sugar level (20%, 40%, and 60%). The intensity of the extracted colour was measured at wavelength 520 nm using UV-VIS spectrophotometer. The results can elucidate the increasing heating temperature and time, sugar content, and exposure to light is able to spoil the anthocyanin molecule. There was a proportional effect of pH and oxygen. The anthocyanin stability was found better in pH=10, acidified ethanol (1%) as extracting solvents, absence of light as processing condition and refrigeration temperature as storage temperature. Hence, these findings could be useful in the food industry to choose a proper processing condition for development of mango powders-based products for satisfying the consumer perception by retaining anthocyanin pigment.
显示更多 [+] 显示较少 [-]Peafowl Production
2020
Fatma Yenilmez
Peafowl is a common name of three species of the Phasianidae family. It is known as a sacred bird in many Asian countries and India that is the homeland of the peafowl. They live in groups and prefer cultivated areas and forests where they can find more food in nature. They feed on cereal grains, insects, fruits, leaves, seeds. It has a strong structure and adapts very well to different climates. Because of this feature can be produced anywhere in the world. There are commonly known three different types of peafowl. Blue (Indian) Peafowl (Pavo cristatus), Green Peafowl (Pavo muticus) and Congo Peafowl (Afropavo congoensis). The most recognizable species of them is the Indian Peafowl. Peafowl has always been the center of attention with its striking, bright and eye-catching colors on its body and long tail, and it is natural wonders. Therefore, they are especially indispensable members of zoos and ornamental gardens. Although peafowl are usually produced for their beautiful appearance, their meat is also very tasty and beneficial. This article is prepared to give brief information about peafowl.
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